Use the fundamental identities to find the value of the trigonometric function.
-$\sin \alpha$, if $\cot \alpha = 3$ and $\cos \alpha

Question

Use the fundamental identities to find the value of the trigonometric function.
-$\sin \alpha$, if $\cot \alpha = 3$ and $\cos \alpha < 0$
A) $- \frac { 3 \sqrt { 10 } } { 10 }$
B) $\frac { \sqrt { 10 } } { 10 }$
C) $- \sqrt { 10 }$
D) $- \frac { \sqrt { 10 } } { 10 }$

Quizplus · Accepted Answer

The Answer of Use the fundamental identities to find the value of the trigonometric function.
-$\sin \alpha$, if $\cot \alpha = 3$ and $\cos \alpha < 0$
A) $- \frac { 3 \sqrt { 10 } } { 10 }$
B) $\frac { \sqrt { 10 } } { 10 }$
C) $- \sqrt { 10 }$
D) $- \frac { \sqrt { 10 } } { 10 }$

Use the Fundamental Identities to Find the Value of the Trigonometric